When you read the following statements from the Wt. Organization... do they satisfy you? Or better stated...... should you be satisfied by there answers?
Question (reasoning book-- Have not Jehovah’s Witnesses made errors in their teachings?
Answer------- Jehovah’s Witnesses do not claim to be inspired prophets. They have made mistakes. Like the apostles of Jesus Christ, they have at times had some wrong expectations.—Luke 19:11; Acts 1:6.
It is true that the Witnesses have made mistakes in their understanding of what would occur at the end of certain time periods, but they have not made the mistake of losing faith or ceasing to be watchful as to fulfillment of Jehovah’s purposes. They have continued to keep to the fore in their thinking the counsel given by Jesus: “Keep on the watch, therefore, because you do not know on what day your Lord is coming" Matthew 24:42
The jv book( page 104 )says this about 1975
In the years following 1966, many of Jehovahs Witnesses acted in harmony with the spirit of that counsel. However other statements were published on this subject, And Some Were Likely more definite than advisable. This was acknowledged in the Watchtower 1980 March 15th page 17.